Amazon Nova Micro vs o4-mini
A complete head-to-head: pricing, context window, benchmarks, modality coverage, and openness, with a programmatic verdict synthesized from the underlying data.
Updated
Amazon Nova Micro specs · o4-mini specs- PriceAmazon Nova Micro
Amazon Nova Micro is roughly 31.4× cheaper on output tokens ($0.14 vs $4.40 per 1M).
- Context windowo4-mini
o4-mini accepts 200K tokens vs 128K, 1.6× the room for long documents and codebases.
- BenchmarksTie
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores.
- Modalitieso4-mini
o4-mini supports 2 modalities (text, vision) vs 1 for Amazon Nova Micro.
- OpennessTie
Both are closed-weight, API-only.
On balance o4-mini edges ahead, winning 2 of 5 categories against Amazon Nova Micro's 1. Amazon Nova Micro is roughly 31.4× cheaper on output tokens ($0.14 vs $4.40 per 1M). o4-mini accepts 200K tokens vs 128K, 1.6× the room for long documents and codebases.
No directly comparable public benchmarks are available for both models, check the spec sheets for individual scores. They differ in modality coverage, Amazon Nova Micro handles text while o4-mini handles text, vision, which can be the deciding factor before you even look at benchmarks. Both are closed-weight, API-only.
o4-mini is the newer of the two, released 4 months after Amazon Nova Micro, which usually means a more recent knowledge cutoff and updated safety post-training. Amazon Nova Micro is usually picked for cheapest llm and fastest llm workloads, while o4-mini sees more deployments in reasoning and math. If pricing matters more than every last benchmark point, run the numbers in the calculator below before committing.
Side-by-side specs
| Spec | Amazon Nova Micro | o4-mini |
|---|---|---|
| Provider | Other | OpenAI |
| Released | Dec 2024 | Apr 2025 |
| Modalities | text | text, vision |
| Context window | 128K tokens | 200K tokens |
| Max output | , | , |
| Input · 1M | $0.035 / 1M tokens | $1.10 / 1M tokens |
| Output · 1M | $0.14 / 1M tokens | $4.40 / 1M tokens |
| Knowledge cutoff | , | 2024-06 |
| Open weights | No | No |
| API available | Yes | Yes |
Pricing at scale
What you'd actually pay at typical workloads. Numbers come from each model's published per-million-token rates.
- Light usage, 100k in / 50k out per day$0.315 vs $9.90
- Heavy usage, 1M in / 500k out per day$3.15 vs $99.00
- RAG workload, 5M in / 200k out per day$6.09 vs $191
Light usage, 100k in / 50k out per day: $0.315 vs $9.90 per month, model A comes out ahead. Heavy usage, 1M in / 500k out per day: $3.15 vs $99.00 per month, model A comes out ahead. RAG workload, 5M in / 200k out per day: $6.09 vs $191 per month, model A comes out ahead.
Estimated spend for the listed models at your usage. Numbers are derived from each model's published per-million-token rates.
- Amazon Nova Micro$0.011
- o4-mini$0.330
Benchmarks compared
Only sourced numbers. Where a benchmark is missing for one model we show the available value rather than fabricating the other.
- GPQA,81.4
Amazon Nova Micro fits when…
- Lowest-cost frontier-lab model
- Native AWS integration
- Generous 128k context for the price tier
- Cost-sensitive workloads, 31.4× cheaper than o4-mini on output tokens.
o4-mini fits when…
- Strong reasoning at mid-tier price
- Fast for a thinking model
- Solid tool-use
- Long-context tasks, handles 200K tokens vs 128K for Amazon Nova Micro.
- Multimodal needs covering vision.
Consider DBRX
Databricks' 132B MoE, a notable 2024 open-weight release tuned for enterprise.
Frequently asked
Is Amazon Nova Micro or o4-mini cheaper?
Amazon Nova Micro is cheaper at $0.14 / 1M tokens per million output tokens, vs $4.40 / 1M tokens for o4-mini.Which has the larger context window?
o4-mini accepts 200K tokens vs 128K for Amazon Nova Micro.Is Amazon Nova Micro or o4-mini better for coding?
Both Amazon Nova Micro and o4-mini are competitive on coding benchmarks. See each model's individual spec page for HumanEval and SWE-bench scores where published. For an opinionated pick, consult our Best LLM for Coding ranking.Are either of these models open source?
Neither model ships open weights, both are accessible only via their respective providers' APIs.When were Amazon Nova Micro and o4-mini released?
Amazon Nova Micro was released by Other on 2024-12-03. o4-mini was released by OpenAI on 2025-04-16.
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